Hello! I'm not new to bonsai, but I've never tried to start one from seed. I've planted some Adansonia Digitata seed and they started to germinate: till today 3 came out of the dirt (and looking at it some more are on the way...). Now, I'd really like to turn them into bonsai trees, but I don't know from where to start... Can someone please help me with that?

Thank you!